C

B

Chọn C

250700

cảm ơn bạn nha :)

9 m² 15 dm² = 9,15 m²

21 m² 8 dm² = 21,08 m²

73 dm² = 0,73 m²

7 m² 25 m² = 32 m²

105 m² 7 dm² = 105,07 m²

45 cm² = 0,0045 m²

`5km^2 = 5xx1000000=5000000m^2`

`3/10m^2=3/10xx100=30 dm^2`

`2400 dm^2=2400xx1/100=24 m^2`

`6m^2 7dm^2= 6xx100+7=607 dm^2`

`5km^2 =  5000000   m^2`            `3/10m^2 = 30dm^2 `                    `2400dm^2 =24 m^2`                `6m^2 7dm^2 = 607dm^2`

5km2=5000000m2

3/10m2=30dm2

2400dm2=24m2

6m2

7dm2=7dm2

25m² 9dm²= 2509  dm²

25m2 9dm2=  2509 dm2

507

5m² 7dm² = 507dm²

507 dm2

`5m^2 = 5 xx100=500dm^2`

`5m^2 7dm^2 =500+7=507dm^2`

507

5m² 7dm² = 507 dm²

Xin chào trường lala~

9 m² 15 dm² = 9,15 m²

21 m² 8 dm² = 21,08 m²

73 dm² = 0,73 m²

7 m² 25 m² = 32 m²

105 m² 7 dm² = 105,07 m²

45 cm² = 0,0045 m²